Michaela Mayer, Ph. D. in Scientific Education is a member of the Italian UNESCO commission for ESD and of the ENSI International network Steering Committee. She has been President of ENSI, member of the PISA Science expert group 2006 and 2015, and of the UNECE expert group for the development of ESD indicators. As responsible for research in the Italian National Institute for the Evaluation of the Educational System (INVALSI) and as freelance expert she has been involved in many national and international Projects and initiatives related to EE and ESD, with a special focus on Evaluation. She has been a member of the WEEC international Advisory Board in 2005 (Turin) and in 2012 (Marrakesh).